Updated mediawiki/extensions Project: mediawiki/extensions/Gather 9939e043003fdd5e21ae32cc1e1dea649f69b626
Ensure collection members can be removed
Due to api inconsistency (thought I fixed this in previous patchset
by using formatversion but apparently not)
Bug: T98448
Change-Id: I7a8d03ccf834bfabf01d0df658a6cebee8687af1